| Product Code | Inner Diameter / flat (mm) |
| MSHA - RD17M | 17 / 30 |
| MSHA - RD23M | 23 / 40 |
| MSHA - RD27M | 27 / 45 |
| MSHA - RD30M | 30 / 50 |
| MSHA - RD36M | 36 / 60 |
| MSHA - RD39M | 39 / 65 |
| MSHA - RD46M | 46 / 75 |
| MSHA - RD55M | 55 / 90 |
| MSHA - RD62M | 62 / 100 |
| MSHA - RD78M | 78 / 125 |
| MSHA - RD109M | 109 / 175 |
| MSHA - RD125M | 125 / 200 |
